NEUROPSYCHOLOGICAL FINDINGS IN FRONTAL-LOBE DEMENTIA

Neuropsychological investigations were performed on 18 patients with a clinical diagnosis of frontal lobe dementia supported by regional cer ebral blood flow measurements. Nature and degree of cognitive impairme nt were examined with a comprehensive test battery. The results of the neuropsychological assessment could be described as three levels of c ognitive impairment. The increasing levels of cognitive impairment wer e accompanied by corresponding levels of reduced cerebral blood flow i n frontotemporal areas. No apparent relationship emerged between impai rment level and illness duration, indicating a considerable individual variation in the clinical course of frontal lobe dementia.